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Finding the Fourth Proportional to 12,670.44, 17,487.99 and 7,368.32

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Solution

The fourth proportional to 12,670.44, 17,487.99 and 7,368.32 is: 10,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.44 : 17,487.99 = 7,368.32 : x
  2. Step 2: Convert to fraction form
    12,670.44/17,487.99 = 7,368.32/x
  3. Step 3: Cross multiply
    12,670.44x = 17,487.99 × 7,368.32
  4. Step 4: Simplify right side
    12,670.44x = 128,857,044.34
  5. Step 5: Solve for x
    x = 128,857,044.34/12,670.44
  6. Step 6: Final answer
    x = 10,169.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.